首页> 外国专利> FLUTTER-RESISTANT TRANSONIC TURBOMACHINERY BLADE AND METHOD FOR REDUCING TRANSONIC TURBOMACHINERY BLADE FLUTTER

FLUTTER-RESISTANT TRANSONIC TURBOMACHINERY BLADE AND METHOD FOR REDUCING TRANSONIC TURBOMACHINERY BLADE FLUTTER

机译:耐颤音的跨音速涡轮机叶片和减小跨音速涡轮机颤振的方法

摘要

Flutter-resistant transonic turbomachinery blades and methods for reducing transonic turbomachinery blade flutter are provided. The flutter-resistant transonic turbomachinery blade comprises a transonic turbomachinery blade (14) that includes opposite pressure (20) and suction (18) surfaces extending longitudinally in span from a root (13) to an opposite tip (17), and extending axially in chord between opposite leading (22) and trailing (24) edges. The flutter-resistant transonic turbomachinery blade includes a local positive camber (32) in or proximate a predicted local region of supersonic flow (30) over the transonic turbomachinery blade. The method comprises predicting a local region of supersonic flow over the transonic turbomachinery blade and inducing the local positive camber to the transonic turbomachinery blade in or proximate the predicted region of supersonic flow.
机译:提供了抗颤振的跨音速涡轮叶片以及减少跨音速涡轮叶片颤振的方法。防振跨音速涡轮机叶片包括跨音速涡轮机叶片(14),该跨音速涡轮机叶片(14)包括相对的压力(20)和吸力(18)表面,其跨度从根部(13)纵向延伸到相对的尖端(17),并在轴向上轴向延伸。相对的前边缘(22)和后边缘(24)之间的弦。防振跨音速涡轮机叶片包括在跨音速涡轮机叶片上方的超音速流(30)的预测局部区域中或附近的局部正外倾角(32)。该方法包括:预测跨音速涡轮机叶片上的超音速流动的局部区域;以及在超音速流的预测区域内或附近,将局部正外倾引导至跨音速涡轮机叶片。

著录项

  • 公开/公告号EP2907972A1

    专利类型

  • 公开/公告日2015-08-19

    原文格式PDF

  • 申请/专利权人 HONEYWELL INTERNATIONAL INC.;

    申请/专利号EP20150153376

  • 发明设计人 WHITE CRISTINA;

    申请日2015-01-30

  • 分类号F01D5/16;F04D29/32;F04D29/66;

  • 国家 EP

  • 入库时间 2022-08-21 15:02:10

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